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优化
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@ -1,16 +1,18 @@
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package io.legado.app.utils
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import android.graphics.Color
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import androidx.annotation.ColorInt
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import androidx.annotation.FloatRange
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import androidx.core.graphics.ColorUtils
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import java.util.*
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import kotlin.math.*
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@Suppress("unused", "MemberVisibilityCanBePrivate")
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object ColorUtils {
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fun isColorLight(@ColorInt color: Int): Boolean {
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return ColorUtils.calculateLuminance(color) >= 0.65
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}
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fun intToString(intColor: Int): String {
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return String.format("#%06X", 0xFFFFFF and intColor)
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}
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@ -39,10 +41,6 @@ object ColorUtils {
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return shiftColor(color, 1.1f)
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}
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fun isColorLight(@ColorInt color: Int): Boolean {
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return ColorUtils.calculateLuminance(color) >= 0.65
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}
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@ColorInt
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fun invertColor(@ColorInt color: Int): Int {
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val r = 255 - Color.red(color)
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@ -79,83 +77,6 @@ object ColorUtils {
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return Color.argb(a.toInt(), r.toInt(), g.toInt(), b.toInt())
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}
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/**
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* 按条件的到随机颜色
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*
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* @param alpha 透明
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* @param lower 下边界
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* @param upper 上边界
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* @return 颜色值
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*/
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fun getRandomColor(alpha: Int, lower: Int, upper: Int): Int {
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return RandomColor(alpha, lower, upper).color
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}
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/**
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* @return 获取随机色
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*/
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fun getRandomColor(): Int {
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return RandomColor(255, 80, 200).color
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}
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/**
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* 随机颜色
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*/
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class RandomColor(alpha: Int, lower: Int, upper: Int) {
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private var alpha: Int = 0
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private var lower: Int = 0
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private var upper: Int = 0
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//随机数是前闭 后开
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val color: Int
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get() {
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val red = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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val green = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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val blue = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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return Color.argb(getAlpha(), red, green, blue)
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}
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init {
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require(upper > lower) { "must be lower < upper" }
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setAlpha(alpha)
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setLower(lower)
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setUpper(upper)
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}
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private fun getAlpha(): Int {
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return alpha
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}
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private fun setAlpha(alpha: Int) {
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var alpha1 = alpha
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if (alpha1 > 255) alpha1 = 255
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if (alpha1 < 0) alpha1 = 0
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this.alpha = alpha1
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}
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private fun getLower(): Int {
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return lower
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}
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private fun setLower(lower: Int) {
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var lower1 = lower
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if (lower1 < 0) lower1 = 0
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this.lower = lower1
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}
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private fun getUpper(): Int {
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return upper
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}
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private fun setUpper(upper: Int) {
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var upper1 = upper
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if (upper1 > 255) upper1 = 255
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this.upper = upper1
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}
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}
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fun argb(R: Int, G: Int, B: Int): Int {
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return argb(Byte.MAX_VALUE.toInt(), R, G, B)
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}
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61
app/src/main/java/io/legado/app/utils/RandomColor.kt
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61
app/src/main/java/io/legado/app/utils/RandomColor.kt
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@ -0,0 +1,61 @@
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package io.legado.app.utils
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import android.graphics.Color
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import java.util.*
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@Suppress("unused")
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class RandomColor(alpha: Int, lower: Int, upper: Int) {
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constructor() : this(255, 80, 200)
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private var alpha: Int = 0
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private var lower: Int = 0
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private var upper: Int = 0
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init {
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require(upper > lower) { "must be lower < upper" }
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setAlpha(alpha)
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setLower(lower)
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setUpper(upper)
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}
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//随机数是前闭 后开
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fun build(): Int {
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val red = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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val green = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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val blue = getLower() + Random().nextInt(getUpper() - getLower() + 1)
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return Color.argb(getAlpha(), red, green, blue)
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}
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private fun getAlpha(): Int {
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return alpha
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}
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private fun setAlpha(alpha: Int) {
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var alpha1 = alpha
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if (alpha1 > 255) alpha1 = 255
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if (alpha1 < 0) alpha1 = 0
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this.alpha = alpha1
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}
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private fun getLower(): Int {
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return lower
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}
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private fun setLower(lower: Int) {
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var lower1 = lower
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if (lower1 < 0) lower1 = 0
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this.lower = lower1
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}
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private fun getUpper(): Int {
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return upper
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}
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private fun setUpper(upper: Int) {
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var upper1 = upper
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if (upper1 > 255) upper1 = 255
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this.upper = upper1
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}
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}
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